Key operated card punching machine



N. S. WELK KEY OPERATED CARD PUNCHING MACHINE Sept. 25, 1951 Q 6 Sheets-Sheet 1 Filed Feb. :5, 1947 INVEN TOR. NELSON .5. M-z/c BY M? Mm ATTOAA/fVfi' Sept. 25, 1951 Filed Feb. 5, 1947 Pt S.VVELJ( KEY OPERATED CARD PUNCHING MACHINE 6 Sheets-Sheet 2 W Mm Arrow/5Y5 Sept. 25, 1951 s WELK 2,569,208

KEY OPERATED CARD PUNCHING MACHINE Filed Feb. 5, 1947 6 Sheets-Sheet 5 V [N VEN TOR. M-zsm/ .5. WEAK %z% 1; Mm

Sept. 25, 1951 N. s. WELK KEY OPERATED CARD PUNCHING MACHINE 6 Sheets-Sheet 4 Filed Feb. 5, 1947 INVENTOR. 4 54 50/v5. 14 5412 Sept. 25, 1951 s, WELK 2,569,208

KEY OPERATED CARD PUNCHING MACHINE Filed Feb. 5, 1947 V 6 Sheets-Sheet 5 INVEN TOR.

A/z-zso/vi WEAK BY W w m Sept. 25, 1951 5, WELK 2,569,208

KEY OPERATED CARD PUNCHING MACHINE Filed Feb. 5, 1947 6 Sheets-Sheet 6 INVETOR. A asoA/ WEAK Patented Sept. 25, 1951 NelsonseI -L A h s, Ohi ..a i etfit li McBee Company, Athens, Ohio, afcorporation of Ohio Application February 3, 1947,-Serial No.-726,142

This invention relates to key operatedmachines for marginally slottingcards having sorting holes disposed adjacent their edges. 1 Cards or checks of the near. marginally punched type are provided with a series of holes or per- 1 forations alongtheir marginal Zones, which may be grouped into fields arranged longitudinally of the card edge, with each field representing a single digit. The card is punched or slottedout to the cardedge from-one or more particular perforations in each field identifying a number, the progressive slotted arrangement from field to field indicating a grouping of numbers.

Certain types of cards of the foregoing character may include aplurality of parallel rows of holes arranged-parallel to. the card margin. .-As

1 an example, in one type of card, each field includes four perforations, numbered 1, 2, 4 and 7, the first three numbers being arrangedin alignment parallel to the card edge,- and the-fllrthf number being spacedinwardly of the 4 perforation and in alignment therewith on a line perpendicular. to the-card edge. Toindicate-numhers I, 2' or 4, the card is slotted from'its edge inwardly to theperforation representing thedesired number. :To indicate the number 7, the card is-slotted -moredeepl -from the marginal edge, through the number 4-perforation,-to the number '7 perforation. Numbers 3, 5, 6, 8 and 9 are obtained-by -slotting the card from-itsedge to the perforations representing -a combination of two of the aforementioned numbers, which add -up to the particular numberdesiredwl 'or example, 3 on the card'edge ina selected field is indicated by slotting out to perforations 1 and 2; 8 on, the card in a selected field is slotted out from the card edge to perforations 1 and 7,-and so .forth. .To indicate 0, slotting or, notching is not efiected at all, the .fact that the particular. field is not slotted representing 0.

Following the slotting indicative of a particular number in onerfield, the card isslotted in the next adjacent field, and the slotting operation continued until the entire card has been app'ropriately punched to designate the desired number grouping. It is an object of the present invention to provide an improved machine for allowing the opposite longitudinal marginal areas of the card of the character above referred to to be selectively, rap

idly and accurately slotted through all of" the fields along the selected card margin.

A further object of the invention isto provide a; key operated cardpunching machine of the general character referred to which is compara 7 Claims. (011164-112) tively simple. in, itsconstruction and whichmay be operated zefiiciently in arapid manner. g V H A ot object o the nventi n is tc, provid an improved mach ne for, nresele i epne Q 1. me

Punches for.slot in fih hmar inel R S Q? @fifiil' prior 4 to the actual s ottin opera ion- .One fo mywhi xt invent on mayeS L e exemplified in hefqllqwine. esc in pa andillustrated by me the invenfiqnraris way. fexam le. i e. acszomn ayin drawings, inwhichz V V Fi 1 sa pR ap .Y eWQf a. .26.9 5 ree e brok n-aw y wi clo ethe ter or mechan sm.

. .nat in s aman; discl sin t e leer a at the se saeto ameehani m. qr-ge erlmieingztll 1 mdn l ma in a e matic in fo m h? n ft .th e wber eehe Fi 3 isape spe t e l me t tt s q winc es prl i i i i il ld he ra e r he k om. p P r fi d d 1 t h e she i lpar of t efbri aunen e ham Fig. 5 isalb gnuqinal Section throughthe machine illustrating, the 'jcarriage and'e'scapement V. c anism, a id Fig. 6 is an exploded view, showingthejoperafive r at n h we nthe u ehesya d he selector wheels.

- ship between t .F e- 7.15ss d ele ates-defin ihe r tiohvarious selector wheelsof a, set

withrespect to oneanother.

Fig. 8 is a plan viewfof a portion of the finerginal edge of-apard to be punched.

A: Fig. 9 is a side elevation ojf theselector m echanism fordeterminingwhich of the two longitudinal margins ofthefcard is to beslotted.

Fig.,10 is a cross-section taken along the line Fi 11 isiaf dee etati n Qtr r thi met mm for act a ihe he P n h l2fl2ofFig, 1.

card slotting; 'or "note,

known in the industry .fljieysort? Fig. 12 is a'p'a ,tialfsection taken mg the} line As ise e 'mr a ta erin /d aw s, a e ma h e p vide for 0peration. on cards of theftypej rnmonly bardsspecifically illustrated in the drawings and par- .ticularly inFig. 8,,one type, of card lll'toi be h d has its. mer ieal. nOrt ns i ide t0 a plurality ofllongitudinally arranged .fieldsfl I,

each field having a plurality of rows of perforations, identified as 1, 2, 4 and '7. The perforations identified by 1, 2 and 4 are arranged at equally spaced distances apart in a row disposed longitudinally inwardly of and parallel to the card edge, while the perforation identified by 7 is spaced inwardly from the number 4 perforation in alignment therewith in a direction perpendicular to the card edge.

The fields II of a card of this type ar arranged along both longitudinal marginal portions of the card, as well as along the side portions, each field being identical and adapted to indicate various identifying numbers. For example, the field beginning at the right end of a longitudinal card margin may indicate a unit, and each succeeding field to the left thereof indicates tens, hundreds, thousands, ten thousands, hundred thousands, etc.

In this description, and by way of example in describing the machina'it will be assumed that the number 25921 is to be punched along the top longitudinal margin of the card. Accordingly, one field will be notched or slotted in from the card edge to the number 2 perforation; the next adjacent field will be notched inwardly to both the 4 and 1 perforations, which add to provide the number 5; the next succeeding field will be punched into the '7 and 2 perforations, to provide the number 9; the next field will be punched inwardly to the number 2 perforation; and the last field will b punched inwardly to the number 1 perforation. Punching could be continued along the card edge for additional numbers whenever required, to the full capacity of the card.

The machine includes a frame comprising an outer housing l2 and vertically disposed stationary walls or standards, I3, I4, I5. A card holder or table I6 is supported on the upper ends of the end and intermediate walls I3, I4, being of a narrower width than the card I0 to be punched,

and having its forward and rearward longitudinal edges l6a, Ifib disposed adjacent corresponding sets of punch levers I8, I'I carried on a single punching head I9 slidable longitudinally of the holder or table IE on guide bars 20, 2| secured to the end and intermediate vertical frame walls I3, I4. The punching head has a handle 22 disposed over the card holder table for enabling manual shifting of the head along the table l6 and card Ill.

A card is placed on the holder table I6 and is appropriately positioned and held by mechanism now to be described. A lever handle 23 is pivotally mounted on the table and is engaged by a leaf spring 24 tending to hold its forward foot 25 in a downward position against the left side margins of the card. The lower arm 26 of the lever is provided with a notch 21 engageable with a pin 28 on a slide rod 29 extending under the table IS, the other end of the rod having a knob 3|] projecting upwardly and adapted to engage a spring holder 3|, whose outer end is secured to the table and whos inner end 3|a is curved and adapted to bear against the right side of the card to hold it in place. The rod 29 and knob 30 are designed to elevate the spring holder 3| from the card to permit its removal and the insertion of a new card against a stop 32 on the table IS.

The lever handle 23 is elevated to remove its pressure foot 25 from the card Ill and to shift the operating rod 29 to the right, by means of the pin and slot connection 21, 28. Such shifting forces the knob 30 against the undersid of the spring 3| and elevates it, permitting removal of the card. Another card is then inserted in place and the lever handle 23 released, which causes its spring 24 to engage the foot 25 with the left margin of the card and the pin and slot connection 21, 28 to shift the knob 30 to the left, allowing the spring 3| to engage the right margin of the card. The card is appropriately positioned in view of the engagement of its right margin with the table stop 32.

The punching head l9 has a set of female die slots 33 (see Fig.- 12) on each of its sides adapted to cooperate with the sets of cutter blades I1, I8 pivotally mounted in the head. Inasmuch as the sets of punches and dies ll, lid and I8, |8a are identical, although oppositely disposed, a description of one will suffice for both. The inward edge Nb of a female die Ila is adjacent a side edge |6b of the table, the card margin resting on the horizontal die surface Ilc from which the spaced vertical die slots 33 depend. There are three die slots corresponding in number to the notches capable of being made in each card field, and these slots are spaced apart from center to center a distance equal to the pitch between holes along the card margins. Cutter blades or punches I'I, corresponding in number to the slots 33, are carried by the head |3 in vertical alignment with the slots 33, their inner punch portions 34, 35, 36 being movable between vertically spaced plates 31 into and out of the di slots 33. The punches are mounted for pivotal movement on a common fulcrum pin 38 extending therethrough and through the outer end of the head. being urged out of the cooperable die slots 33 and against a common stop pin 39 by springs 40 engaging the outer operating arms 34a, 35a, 36a of the punch levers and encircling the fulcrum pin 38.

It is to be noted that the punch portions of the blades I! do not all extend inwardly from the fulcrum pin 38 to the same extent. The punches 34, 35 for notching the edge of the card inwardly to the number 1 and 2 perforations are identical, whereas the punch 36 for notching the card inwardly to either the number 4 or 7 perforation is dissimilar, having a lower punch portion 3611 for notching the card from its edge to the number 4 perforation, and an upper portion 36c extending inwardly to a greater extent than the lower portion for continuing the notching of the card from the number 4 perforation to the number '7 perforation. In notching into the number 1, 2 and 4 perforations, the cutter blades I! are given the same extent of movement, whereas, in notching into the number 7 perforation, the blade punch 36 is given a greater extent of movement, as later described.

Each set of punches is operated in accordance with the selective settings of a plurality of indexing regulator wheels 4|. These wheels are arranged in sets of three progresively along the machine, in order to cooperate with the three cutter blades as they are positioned progressively to notch a card II] in each field l I. As indicated in the drawings, there are three indexing regulator wheels 42, 43, 44 for each field, and, since there are eleven fields provided for along each longitudinal edge of a card, there are a total of thirty-three regulator wheels. Since each set 4| of regulator wheels is a duplicate of the other, a description of one set will suffice for all.

Each indexing wheel in a set is provided with peripherally spaced prongs or projections adapted to engage an associated depending finger 34b, 351), or 3% on a cutter blade. Each set tamues pr'origs" 'or projecticns fla spaced 1 therearound *tweewthe -interm'ediate and end walls ll; -15 ot i adapted to engage the pun'ch- 34 for notch-ing the the frame, the ":levers' 61*extending forwardly-30f 'eards into the number: 1 "perforation. Similarly, the m-a'chinewhere-vertically arranged key i'stexns the intermediate wheel 43 has four prongs or i5 -66- proiect 1ipwardly=fromvthe frame for atta'chprojections-43a adapted to engage the-iiiri'gef fib i-inent' to suitable' keys 61 ran'ging from10to -B, on the intermediate cutter blade 35-f0r notchconstituting the operating "keyboard of the keyi'ng the card from its marginaled'ge to the 'numpunch mechan'i'sm. r

ber-z' hole. The other wheel has a 'total of The regulator wheels of ea'ch setll lare'secured *{six prongs or projections, three -44a of whichame 1 0 toaselectorl shaft fi8 rotatably nmunted ina pair adaptedto engage the lever 36 to notch th- 95rd -otspaeed lever arms ss oscillata'ble' on a' guide bar l-from its outer edge to the4 perforation and 20.- 'I he shaft 68 =projeets 'outwardly from the the other three MU-of which -extend outwardly innena'rm fi9'and hasa pinion T0 secured-t0 it and 'fi em the 'axis of the wheel to a greater x'tent *a'dapted forengagement 'with the :teeth 'lhot-a than-the number 4 projections 14a, iri' yorder-to 15 rack-M1 12, selectively shiftablelengthwise in acengage the fingersfib and impart a: greater v "orda'nce with the depression-of-any selected key fii'o'yement tothepun'ch 36 and notch the A Tbrithe keybdard. 'I he ra'ck -bar is c'arried oma to the number 7 perforation. By variously'-ro- --'rocker carriage 13 pivotally mounted on :a stud H tating the wheels-"their projections mayibe 's'ecured= to--the intermediate'-- wall"l4of the maalig'1l' 1ed with the punch" fingers 3lb35bfi3$bto "chine-frame} being islidablyiguided through sldts "produce actuation of the punches singly or in 15 defined by -upper 'and lower:spacer-blocks 'lli "groups of two, for the purpose of notching each =-and outer plates ll -suitably atta'ched to'the earpara field l I to the; desired extent. r'i'age=l3.-- Alock lever -18 is:pivota1ly mounted on 'lhe punch head 19 is slidable alon the guide the carriage 13;ahaving teeth- 19 on its 'outer end bars 20, 2! in one direction, as to the fighters- 5*engageable with the pinion H] to lock-itisagainst viewed in Figs. 1' and 3; -by -aspring o'perated -movementwhen the-index "wheels il are 'all ftape fi woundon a spool-46 rotatable on a pair turned to a 'o positi'oni This -lock'lever wis movof brackets 41 suitably sec'ured' to "the 'e'nd -supable toward engagementwiththe pinion"lavbyia "porting wall 15; with the'i'nner endofthe -tape spring Bllsecuredtoa lever lug-a'l and-to'a pir1 '82 being suitably attached to the right end' 'o'f the projeeting ifrom the guide'pl'ate 11.-=.-Movement p'unch head carriage l ila. -The car'riage may be of theleverla-toward the rack 12 underthe in- 'mov'edto the left-against the action of the-spring flrier ice of the springwfl' is lim-ited by engagement "tape '45 by manual grasping and-shi'fting of the of the lug 81 with the upper spacer block- 16: "It is -handle 22 in the direction ind icated. "to' be noted that the rack banlt 'has both for- "Th'e carriage l9a is-movable step by-step dur ward and' rearward teeth 'l la, H engageable with "ing' the operation of the-machine 'by the spring the forward and rearward-"index!wheelpinions -tape 45, as permitted-by an-"escapement mechlllag lll-iand that there'aretwd oppo'sitely dir'ected anism. Such escapementmeehanism is off the lo'ck 'lev'ers 1M518'erigageable with the pinionsi *"gneral type described in Patent No. *2-,=041 ;085, By-appropr tely rocking the carriage:'13; the wa includes a rack' 48' secured"tothe -carriage rear rack teetlr may engage the p nim -mswnh and having teeth' iil on -its underface spaced the the -coep'erable rear lever 18 shifted upwardly tame distance from each other-as the distance from-engagementwith: the pmion mi wl'iile the from the beginning ofone "field; l I on the card i {forward-rack teeth I la 'are disengaged from the "10 -to the next'field. The-rack =is held "a'hd pinion 'lllmand itslo'ck lei/er Wlt'engaged WitItthe stopped, to correspondingly control the punch 5pihiQn -JOa. Such rocking oceurs through the "-heaiiand its cutter blades inappropriate alignediu'm df-ar' eoiitrol lever 83=p ivoted in =the'- iorment with the field onth-- card '-by a-pa;w1 W3rd part '0fthe machine tb'the left of the keys 'rne'chanism, including aholding'pawl' sc-pivetan 'l and nievable to a topp'o'sition to rockthe earmounted'upon a-suitable rod 5| -carried-irfthe riage 'lfl -and' r'neve it's rear end upwardly and ics "frame and having itsnose fiz motable upwardly' su forward end downwardly. This-:movementfi is mm engagement with the ratchet teeth flaito ififihfimittii'through a connectine 'ro'ct or link 8 *preventfurther movement of "the "r'atchet'dfl and im ting one 'end' pivot'ed to the lever 83' 'and "its the punch head I 9 to the-right. This paw-1 50 t itherend pivoted to a composite pressure lever {has apin-53 extending from its'iace'int'oa -s'-lot e illa'taible' on a' shaft fle'sec'uredto the interfifp'rovided in aleverarm iifi fiXed-to'a-shaftj 56 '55 ate" fid end v vallsil4;15df the'fi'ames' A' pin "carrying a stop or escapement-pawl 5l sinlilar attlie upper end of-the pressure lever is ridto" the holding pawl 50* and movableupwardly emeaiong'aacurved surrace saon the'u'nderside'of into engagementwith the rack teeth" 49. "By virthea'rriage 13 extending on; b'0th'- SideS of its "tue of the interconnection betweenthepawl's 5Q, p"iilotal=aiiis fl;fbeirig maintained-insnug'engage- 51, they move upwardly and downwardly in-opfio iiien therewith by springm'eans. The pressure "'posite directions, as will be explained-later. j' l'ev "Ui iseompesedof severalparts, including a At the present time it may bepointedout' 'that upportine mexnber '89=oscillatable onthe shaft "the pawls are rockedabout their pivotalaires by an a'il jace'n't pin carrying n'iember'SH-s-lida'bly "the oscillations of an arm 58"secu'red-to th'Eshaft 'ttaehed t'dthe*supporting member by a pin and .1 and having motion transmittedto it '37" ine"* "1ot=conneetioif 91:92, an a tension SpringBB'sepivotally attached to the upper end of a link'iil cured to the upper end of thesup'porting member whose lower end is pivoted to an armed-secured 89 he ibwer pin 9| urging the member up- "on a rock shaft 6| suitably journalledinthe """ardlyT-andfi'ts pin 81 firmly'against-the curved frame of the nrachinefand extending to a"p*osi- 3 'fiage surfaee as; which extends on opp'os'ite f ition adjacent" the end "supporting" walP" 'l5;"70"s'ides of the carriage fulcrum I4. f Spaced operating arms 62 are secured" tojfthe "'lhe selejctiorr 6r the racltetlr H 01" Ha and sha'ft 6| between'the intermediate and endwalls ievers ra or18d engageablewith' the pinions lo, l4, l5 extending rearwardlyandha'vin'g a red 63 "10a isdet'ermined by shifting ofthe'lever 83. "Its "interconnecting their outenendsf The 'rod 63 rii iiveitienft"to*the%opniost positiorrengagesfihe "extendsunder' a pluralityof key leyers fil blv wreawaeiitetn 'llwitli-its' asscci'ajted pinion lfl and the forward lock lever 18a with its pinion 10a,

at the same time disengaging the. rear latch lever .18 from its pinion I and the forward rack teeth I Ia from its pinion a. Conversely, movement of lever 63 to the bottom position engages the forward rack teeth Ila and rear lock lever 18 with their respective pinions and disengages the forward lock lever 18a and rear rack teethlI from .their respective pinionsv Following the selection of the .longitudinal card edge to be punched through manipulation ofthe lever 83, the rack bar I2 is slidable along the carriage I3 in mesh with a pinion to a predetermined extent, dependent upon the depression ofv a particular key 61 on the keyboard. Depression of a selected key effects rotation of the shaft 68 carrying the selector wheels 4|, and positions their prongs 42a, 43a, 44a, 44b in. alignment with the punch fingers. 34a, 35b, 36b, or positions such prongs completely out of alignment with the fin gers, allowing them to enter the space, between the prongs. .The prongs; are so arranged as to provide the appropriate notching of the card from its marginal edge to'the proper perforations.

Each key stem 66 is attached to a key lever 64- which has an intermediate cam faceor nose 94 adapted to engage a rod 95 extending between a pair of follower levers 96 journalledon a pivot pin 91 secured to the frame of the machine. The inner follower lever 96 has a link 98 pivotally attached to it, whose other end is attached to a selector lever 99 pivotally mounted on the same rod 86 serving as the fulcrum for the pressure lever 85. This selector lever 99 has its upper end pivotally attached to a mid-point of the rack bar I2 by a suitable pin I00, and it is also provided with an intermediate triangular shaped opening IOI having downward converging tapered sides I02. A restoring mechanism cooperates with these tapered sides, to produce centering of the indexing wheels 4| to their 0 position. Such restoring inclinations on their cam faces 94. Some of the cam face inclinations extend in the same direction, but vary in degree from one another, while other cam faces are inclined in the other direction, engaging the other side of the bar-95 connected to the follower levers 96. The facesare so chosen that the particular key depressed will I rock the selector lever 99 and slidethe rack bar 12 to the desired extent and in the proper-direction, in order to rotate the pinion gear ,I0 engaged with the rack to the required extent, and thus appropriately align theprongson the selector wheels M with the depending fingers of the cutter blades II.

After depression of a key 61, to select and position the index wheels 4|, the notching of the card takes place through the intermediary of a motor driven mechanism. The index Wheels '4I,

as above noted, are secured to a, shaft 60 rotatable within the spaced supporting levers 69 pivoted on the guide bar 20. The other, forward set 4Ia of regulator wheels is alsoinourited on a shaft68a rotatable in spaced levers 69a. oscillat aable onthe other guide bar H, the two sets of levers 69, 69a, being interconnected through a pin .indexing wheels M, Ma occur as a result of the rotation of an electric motor IIO, which revolves .a crank III, whose crank pin H2 is pivotally secured to the lower end of a connecting rod I I3,

whose upper end is attached to the outer end of an operating lever II4 through a ball and socket swivel connection II5. This lever H4 is attached ,to a rock shaft II6, suitably journalled in the .frame of the machine, to which spaced arms II'I are secured. A pair of links IIB securethe outer ends of the arms II! to the outer ends of the spaced levers 69 mounting the index wheel shaft 66. Rotation of the motor I I0, through the crank III,. connecting rod II3, lever and link mechanism H4, H1, H8 described, elevates the supporting arms 69 for the indexing wheels 4| and causes the selected projections on the wheels 4| toengage selected cutter blade fingers 34b, 35b, 36b, swinging such fingers upwardly and the blade punches 34, 35, 36 downwardly to appropriately notch the card in the particular field I I adjacent which the set of blades has been positioned.

The last portion of the movement of each key 61 being depressed causes the lower end of its stem 66 to engage a switch H9 and close the circuit to the electric motor IIO. Such depressed key is held in its lower position by engagement of its detent nose I20 with the underside of a holding bar I2I extending across all of the key levers 64. This bar I2I extends substantially at right angles from a lever I22 pivotally mounted on theintermediate wall I4 of the machine, and having an arcuate upper lever arm I23 provided with a cam surface I24 adapted to be engaged by a pin I25 projected from the forward index to the detent bar I2I and to the frame of the machine urging the bar into holding position over the selected key lever detent I20. However, downward movement of the lever 69a and shaft 68a toward initial position causes the finger I25 to engage the lever cam surface I24, rocking the upper arm I23 rearwardly and the detent bar I2I forwardly, free from engagement with the key lever detent I20, and allowing a return spring I21, whose lower end is attached to the forward portion of the key lever 64 and whose upper'end fis attached to a pin I29 extending across the levers-64, to elevate the key lever to its uppermost position.

Depression of the number 1 key rocks the selector lever 99 to a certain extent and appropriately shifts the rack I2 to rotate the meshed pinion gear I0 and place a prong or projection 42a on the number 1 selector wheel 42 in its uppermost position in alignment with the number 1 punch finger 34b, causing the motor .operated mechanism to operate the number 1 punch 34 only upon closing of the switch II9 by the key stem 66. Similarly, depression of the I I, I0, to cause a number 2, or number 4 or number .7 wheel projection 43a, 44a or 44?) to be aligned'with the number 2, 4 or 7 lever 35a or 3fifl1 -.t0.=-.accomplish. appropriate notching of. av ca-iidinapartieular field,. Depression of the num-. benB :key causes the regulator wheel shaft 68,.to. be,.rotated to such. ancextent that botha numbelt, 1 and a. number 2projection 42 and 43aare. a1igned...-with .thenu-mber 1 and the number -2 punch 34, .35,,in order thatactuation of the'motor. operated. mechanism elevates the index wheel shaft..68.and..operatesbothpunches to notch the card. inwardly from its-.edge-tothe number 1 and, 2 perforations.

Similarly,.-numb.er 5 key. depression rotates the selectorshatt 68 andaligns a projection Maori therhumber 1 wheel? anda projection. Mo on the. number 4 wheel with the corresponding. land 4 ,pu nch-.lever 3%, 35a, to. cause. two. corre spending notches.to...be punched in the marginal edgept .the..card.,. Depression of the number 6 key aligns .boththe number 2 andthenumber 4 projections 43c, 44c withthecorresponding levers 35a, 36d;...dcpression of thenumber .8 key aligns, boththe. number, '1 and .the numbfir 1 ,projec tions .4411, 421;. .on .theiselector wheels with. the punch leyerstfia 34a..;. and depression of the number 9. key .aligns,..both the number and number e2 projections Mb, 533d. on .the selector wheels with the-.pumhlevers- 3611,, 35a. It isto. be .-noted that each instance alignment of the number 7 projection 441), which extends radially utw rd .a... re te11. extent..,than the. number. 4 plfojcctionflda provides a deep notch in the card o the inward n mber 7 perforation.

Dnpression of,,the ,0 effects .no movement of, .the, rack. .bar, 12,- at all, which is normally urged into. .a p sition ,inwhich none-oi the projections...on .the wheels are in alignment with the cuttenbladefingers .3412, $517,361) by the spring ur ed lever] I13 and.,follower, I 0.6 acting oneither inclined .face,l02 .of the,-- selector lever. 99 and tendingto. center. thesrackflbar I2 and. selector shaft. 6M0. a .0 position...

Let.it...be. assume.d that. the number referred to;..above,;.25921, .is. to ,be. notchedon. the .upperlongitudinalmargin f.the..card I0... The punch headhandle 22..is..gr asped and the head, Isis, moi/ed. .to ..the .leftof the machine, which places th,e.. .cu tter. bladcsrin, ali mentvwith. the. p r:- fQrationsinthe.firstrfield. I I. to, be slotted- Sincev the .upper..marginal. area: isto be. notched, the control lever 83 is shifted.to..its top. position, which. approiariatelyrocks the. .carriageJS on its pivotnM."and,.,engages .the..rear rack .teeth II. Withthe. pinion] I]v .and removes .its. opposite latch 'Hltrom engagementwiththesame pinion. Such, rocking of. the .carriage disengages the. forward rack teeth. I In. from the. pinion L'IOa, and engages the iorwardlock. lever.'l8a. therewith to prevent inadvertent. rotationof the ,forward ,selector wheels..l niromthefi position... It isto be noted thahthe. selectormechanism. is normally moved and. heidina O index-position byl ne centering leyer, 9&..up,on..elevation:.ota depressed key 61 to its initial position, and that the. stoppawl 51, of...the. escapement mechanism. is in engagementawith a. rack. tooth. 49-, insuring appropriatojpositioning of the cutter blades opposite the corresponding. perforations of the first field.

The. number .2 .key is depressed, which oscillates the-selector. lever 99, through the key lever inclined .oamface andslides the rack .bar. 12 to..rotate .thepinion I0. and Wheel shaft 68. a predetermined-distance aligning a prong or Dmjection... l3a onthe number. 2 selector wheel 43. with. the. interm diate... n m er 2 utter. bl de key closes-.themircuit for the motor III! and causes it; to .rotate and,. through the crank II I,.

connecting ,rod. I I3 and leverage mechanism ,I I4.,. H1, H8, oscillate vthelevers 69. about, the rear. guidebar 20,.movingthe selector shaft 68 upward ly,.and causing the number 2 projection 43a to strikethe nose b on the number 2 blade, shifting its other end 35' downwardly to notchthe card... The otherpunches are not moved because. their noses 3412,3611 enter the space between the pro-M jections. on the. other regulator Wheels 42 44, This is. also .true of all of the regulator wheels, lia on the. forward set of themachine, which. are. lockedin a 0 position. The. noses on the p n hes' re n t n a ed y anyproiecti ns and; consequently,. cannot. effect a swinging of the. punchlevers against, the action, of their return sprin slu.

Upon, depressing the number 2 key lever, the. detent bar .IZI engages over the, detent nose I20 and prevents its upward. return movement.. The. depressing. action of. the number 2 key also causes. the, innerportion of ,its associated key lever 64. to. strike the bar 53, and rock the arm .62.. ,O the,

escapement mechanism, producing rotation of,

the shaft 56 ,towhich the stop pawl 51,, is. se-., curedand lowering .ofthe stop pawl from engagement .withthe rack teeth 49. Thissame motion moves. theholdingpawl in an upward. direction, byv virtue ofthe pin and slotconnec: tion 53, 54 ,to engage itsnosa 52 against a rack tooth. 49 and prevent movementof the punch head I9... Following the remoyal of ,downward pressure ,from, the .number- .2 key, it. elevatesa slight distance-under. the. influence, of its return spring, .I 21 to open the motor switch. H9 and .cir.v cuit, the. pin 25. on the, selectorfshaft. lever. 69a.- engagingthe detentleyer cam face I24, tomove the detent..,bar,.l2l forwardlyout of .engager. ment with. the latch .nose I 2.0 on. the number 2 key. .leyer,-. permitting its. return spring I21 to re-elevate. the lever. 64, and remove its can: .face 94, fromtheselector rod. 95... The spring I0]. and levernarm I03 may. now cause the. follower. roller ifistmshift theselectorleyerflfi,to, 0, centered. positionk which correspondingly. shifts the =rack1barJ2 and selectorshaft. 68 backtoo position.

Elevating .movementrof, the key lever .64 permits, the spring .6211, to raisethe lever .arm .62 of the es..-.. capement mechanism, .-removing the holdingpawl, 50 from engagementwiththe.rack. tooth 49,..and allowing. the spring tape .45 .,to. shift. the punch head. I9. .to. the .righta-distance determined by I engagement of. thenext. succeeding rack. tooth.

over the next. field on the card I I1,.whereupon the.

next, key,.number. .5, may, .be depressed to rotate. the selector-wheelsi l I'. and position both the num: berri and number 1 prongs 44a, 42a inalignment with'the blade fingers 36b, 34b. .As before, the.

7 depression. of the number 5 keycompletes .thecire wit. to, themotor .I II)v and, causes. elevation. of the. selector wheel shaft .68 to. actuatethe. number 1 and number 4 punches 34,3601, and notch thecardv to. the numberl and number 4 perforations. The. other numbers 9,2 and ,1 are alsopunchedby de-.;

pressing. thecorresponding keys sequentially, the. punching head J I SIS-being. shifted progressively, stepiby step fashion, by the spring tape 45.and ese, capement mechanism ,to, the, next succeeding...

The. last denressingmovementpf the-n mber 2 .75 fi lds and thecard .no h da propriate y- The key is not connected with the selector lever 99 at all, its depression merely operating the escapement bar 63 to produce the appropriate movement of the stop and holding pawls 51', 50, causing a shifting of the punching head I 9 to the next field without producing any notching whatsoever in the current field. The lack of notching in a field indicates a 0 number.

In the event that it is desired to notch the forward longitudinal margin of the card [0, the side control lever 83 is moved to its bottom position, which will rock thecarriage 13 about its pivot 14 through the action of the pin 81 against the curved cam surface 88 on the underside of the rocker carriage, the pin being moved to the other side of the carriage fulcrum 14. Such rocking action engages the forward rack bar teeth Ha with its pinion a and removes the latch lever 18a. from its engaged position. At the same time, the other latch lever 18 is engaged with its pinion I0 and the rear rack bar teeth 1! disengaged from such pinion. The notching along the lower card edge then can occur in the same manner as alon the upper card edge, the depressed keys 6'! selecting the register wheels a and prongs which are to engage the noses on the cutter blades.

It is, therefore, apparent that a keypunch mechanism has been devised capable of selectively notching both the upper and lower longitudinal marginal edges of a card, in accordance with the depressions of the keys of a single keyboard. A single punching head is positioned progressively adjacent the fields on the selected marginal edge and the same single opera-ting mechanism actuates either the punches for the upper edge of the card or the punches for the lower edge of the card, depending upon the edge to be notched. The entire mechanism embraces a minimum of parts and is simple to construct and operate. Its servomotor actuation permits its operation at a comparatively high speed and with a minimum of effort on the part of the operator, who need merely make the selection of the numbers to be notched and punched in the card through depression of the particular required keys.

While I have shown the preferred form of a machine for practising my invention, I wish it understood that various changes may be made in its construction by those skilled in the art without departing from the spirit of the invention as defined in the appended claims.

Having thus described my invention, what I claim and desire to secure by Letters Patent is:

1. A machine of the character described comprising a frame, means for holding a card on the frame in a predetermined position, guide means extending arallel to the opposed Side edges of a card on said holding means, a carriage movable on said guide means and having opposed sets of punches and dies in operative relation to the side edges of a card supported on said holding means, means for actuating said punches including a set of selector members for each set of punches adapted to transmit movement thereto, a single set of key operated means for moving said selector members to determine the punch to be actuated by said actuating means, means for selectively placing said key operated means in operative relation with said sets of selector members in order that only one set of said sets of punches and dies may be effective for operation on a card, and means for automatically shifting said selector members to ineffective position following actuation of a selected punch by said actuating means.

2. A machine of the character described comprising a frame, a carriage carried by said frame, sets of punches and dies on said carriage for punching a card on said frame, a set of selector means for each set of punches, common means for moving said sets of selector means to actuate a selected punch, key operated means for indexing said selector means to determine the punch to be actuated by said common means, and means for selectively placing said key operated means in operative relation with said sets of selector means in order that only one set of selector means may be effective for operation on a card, the other set of selector means being held in ineffective rela-' tion with respect to its associated set of punches and dies.

3. A machine of the character described comprising a frame, sets of punches and dies for punching a card on said frame, a set of selector means for each set of punches, common means for simultaneously moving said sets of selector means to actuate a selected punch, key operated means for indexing said selector means to determine the punch to be actuated by said common means, and means for selectively placing one of said sets of selector means in operative relation with said key operated means and for holding said other set of selector means from operative relation with said key operating means.

4. A machine of the character described comprising a frame, means for holding a card on the frame in a predetermined position, guide means extending parallel to the opposed side edges of a card on said holding means, a carriage movable on said guide means and having opposed sets of punches and dies in operative relation to the side edges of a card supported on said holding means, a set of selector means for each set of punches, common means for simultaneously moving said sets of selector means to actuate a selected punch, a single set of key operated means for indexing said selector means to determine the punch to be actuated by said common means, means for selectively placing. one of said sets of selector means in operative relation with said key operated means and for holding said other set of selector means from operative relation with said key operated means. and means for advancing said carriage step by step along said guide means.

5. A machine for coding a card of the character described comprising fields each having a plurality of numerals or other indicia thereon, said machine comprisin a set of punches so disposed as to punch a field in correspondence with said indicia, a rotary selector whose angular position determines the punch or punches to be activated and which is operable to actuate any one or any combination of said punches depending upon its angular position, and key operated means for determining said angular position and for actuating said punches in accordance with said rotary position.

6. A machine for coding a card of the character described comprising fields each having a plurality of numerals or other indicia thereon, said machine comprising a set of punches so disposed as to punch a field in correspondence with said indicia, a rotary member for actuating said punches and so disposed with reference to said punches as to actuate any selected punch or combination of punches depending upon its angular position, means for rotating said rotary member to any selected angular position, means for operatively connecting said rotary member and said set of punches when said rotary member is in a selected angular position, and key operated means for actuating said rotating means and said connecting means.

7. A machine for coding a card of the character described comprising fields each having a plurality of numerals or other indicia thereon, said machine comprising a set of punch levers so disposed as to punch a field in correspondence with said indicia, means for advancing said set of punches step by step to punch said fields in sequence, a rotary selector member comprising a rotatable shaft having a plurality of similar sets of selector wheels afi'ixed thereto, said shaft being supported for oscillation between a normal, inactive position and an active position wherein said wheels actuate a set of punches, each set of wheels being aligned with a field, each wheel having radial spokes and the spokes of the several wheels of each set being so dis- REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,804,994 Lasker May 12, 1931 2,419,781 Keefe Apr. 29, 1947 FOREIGN PATENTS Number Country Date 587,155 Germany Nov. 2, 1933 

